Fimhtintyils.] Qhll. CYPERAOEjE. 1767 



bracts under the principal rays usually short, rarely 2 or. 3 exceeding the 

 inflorescence. Spikelets solitary on the stem- or on^ the rays or rarely clustered, 

 pale, or dark brown or almost white, never black. 



..The genus extends all round the world, but chiefly in tropical or subtropical regions, anjl a 

 •larger proportion is Australian than in the case of Scirpus and tieUocharis. .•J ■"' 



Sect. I. Keleocharoides. — Spikelets solitary, terminal. Ghimes imhricate all ronnd. 



Nut biconvex, with transverse raised lines or wrinkles. Slyle-branoheg ' ' ^■•' 

 2 or rarely 3. 

 Spikelets erect, usually whitish. 

 One or two lower glumes empty. , . ... 



Stems leafless but often intermixed with a very few leaves. Style- ,j. 



branches 2. 

 Stamen 1. Style glabrous . . . ... . . . 1. F. aciculaiis. 



Stamens 3. Style ciliate 2. /<'. acuminata. 



Leaves numerous, filiform. Style-branclies 3 . . S. F. pimctata. 



About 4 lower glumes empty, 'all broad and obtuse. Stem.s leafless . 4.. F. rhyticanja. 



Spikelet nodding, usually brown . •. . . . . . 5. F. nutans. 



Nut 3-angled • or biconvex, smooth striate granular or tuberoulate.- 

 Stjle-branche? 3 or sometimes 2. ■ ■ 



Spikelet oblong, lanceolate. Style-branches 3. ■ • 



Spikelet about ^ line broad. Leaves few or none. No inyc^luoral _ 



bract. Nut tuberculate ...'.' ;^-.'' ;^'6. F. pauci/iora. 



Spikelet ovate or olilong. Style-branches ^. 

 ^ pikelet 1 to IJ line broad. Nut tuberculate. 



Leaves numerous, filiform. Flowers all hermaphrodite , . . . 1. F. polytricJioides. 

 Spikelet 2 lines broad. Nut (smooth ?) rather broad. Leaves few, 



narrow 8. F. subbidlmsa. 



Spikelet 2 lines broad. Nut narrow-oblong, striate, and cancellate.. 



Stems leafless 1 . . 9. F. tetragona. 



Spikelet globular, erect. Style-branches 3. I;e.T,ves numerous. 



Spikelet white, 2 to 3 lines diameter. Nut flattened, often surrounded 



by a hyaline wing 10. F.pterygosperma. 



Spikelet brown, 1 to IJ line diameter \l. F_.syharoceph(il(i. 



Spikelet nodding, brown, ovoid or cylindrical, 3 lines diameter. Leaves >. 

 long and flat , . . I'i. F. xyridis. 



(See also 24, F. hptoclada, which has sometimes solitary spikelets). 



Sect. II. Abildgraardla.— .Spite/rts solitary or few, flat xoitlt distichous glumes, or nanow 

 nnd spiral in 2 or rarely 3 rows. Style-hrani'lien usually 3. 



Spikelets solitary, narrow, usually sjiial. Glumes long, cartilaginous, 



rigid with long recurved points ...'..'.'.' 13. F. s'quarrulosa., 



'■ Spikelets often several, very flajt, regularly distichous or slightly spiral. 

 Leaves few, narrow-linear, rigid. Spikelets solitary or rarely 2 or 3, 



pale or nearly white li. F. mono^Uichy a. 



' Leaves numerous, narrow-linear; ^ Stems 3 to 4in. Spikelets 4 to 6, 



rich brown 15. F. Dallachyi. 



Stems 1 to 2ft. high, flattened. Spikelets solitary erect, deep-brown . 16. F. recta. 



Sect. III. Dichelostylis. — Spilclets several u.iiiaUy numerous. Glumes imhricate all 

 round. Style-lranches 2. Xiit biconvex. 



'J?u/ted annuals, leafy at the base. Stems under 1ft. 

 Nut smooth or very minutely striate or cancellate. 



Style-bulb ciliate at the base, the hairs spreading or reflexed over the 



nut 1.7. F. r.elata. 



Style-bulb glabrous . 18. i<'. <estiva,lis. 



Nut with distinct longitudinal strioe or ribs and transversely cancellate. 



Spikelets numerous, under 2 lines long . 19. F. dicTu^ma.. 



'Perennials, often above 1ft. high. • ' , '^' ' 



'■ Nut with distinct longitudinal striae or ribs and transversely rugose. * 

 - Style fliat, ciliate. Leaves often numerous, glabrous. 



;,; Spikelets usuiil,ly brown, ahput Slices , ., . . , ,, 20. F. diplnjlhi. 



I Niif smooth or rugose. i , j 



Style distinctly ciliate. ' " 

 ' ' ' ■' Stems leafless or with few leaves. Spikelets ovate-lanceolate, IJ to 

 . 'i; 2 lines broad. Nut smooth ....'. 21. F. ferpiginea. 



